How much faster is a supercharged E92 M3 versus a stock E92 M3? This much.

Here is a video that will do a better job explaining the difference between a supercharged and standard M3 than any dyno numbers ever will. The camera car is a 6-speed manual E92 M3 with a supercharged S65 V8 courtesy of an ESS VT2-625 kit. The other M3 is also a 6-speed manual but not supercharged and seemingly in a stock configuration. The difference is illustrated quite well with the distance between the two measured in miles rather than car lengths.